Device for machining ophthalmic lenses, the device having a plurality of machining tools placed on a swivel module

Active Publication Date: 2010-04-15
ESSILOR INT CIE GEN DOPTIQUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0021]The present invention proposes a novel machining device that is more compact, that is easier to maintain, and that provides improved accurac

Problems solved by technology

The main drawback of such a machining tool is that the set of wheels comprises numerous tools that are stacked one next to the other so that the set of wheels is cantilevered out over a long length.
While the lens is being machined, bending forces are applied to the set of wheels, thereby deforming it and causing the machining of the ophthalmic lens to become inaccurate.
Furthermore, because of its length, the set of wheels occupies a considerable amount of space and, because of the way the tools are stacked together, it requires time-consuming maintenance.
As a result, it is necessary to use a motor that is powerful, and that is therefore expensive and bulky.
In addition to its high manufacturing cost, such an architecture gives the finishing module size and weight that are considerable.
Finally, only the drill bit can be oriented relative to the lens, which means in particular that it is not possible to modify the orientation of the groove in the edge face of the lens.
Nevertheless, that device does not have a drill tool.
Even assuming it

Method used

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  • Device for machining ophthalmic lenses, the device having a plurality of machining tools placed on a swivel module
  • Device for machining ophthalmic lenses, the device having a plurality of machining tools placed on a swivel module
  • Device for machining ophthalmic lenses, the device having a plurality of machining tools placed on a swivel module

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Embodiment Construction

[0041]The following description with reference to the accompanying drawings given by way of non-limiting example shows clearly what the invention consists in and how it can be reduced to practice.

[0042]In the accompanying drawings:

[0043]FIG. 1 is an overall perspective view of a machining device of the invention;

[0044]FIG. 2 is a detail perspective view of a machining arm of the FIG. 1 machining device;

[0045]FIG. 3 is a perspective view of the FIG. 2 machining arm seen from another angle;

[0046]FIG. 4 is a perspective view of the FIG. 2 machining arm including a machining module shown in an inclined position;

[0047]FIG. 5 is a perspective view of the retractable machining arm of FIG. 2 shown from another angle with means for adjusting the orientation of its machining module;

[0048]FIG. 6 is a perspective view of the FIG. 4 machining module seen from another angle;

[0049]FIG. 7 is a plan view of a finishing and polishing module of the machining module of FIG. 4; and

[0050]FIG. 8 is a sect...

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Abstract

A device (1) for machining an ophthalmic lens includes a support for the ophthalmic lens and for driving it in rotation about a blocking axis (A1), a machining module (35) that can be swiveled relative to the support and driving the lens in rotation and that is suitable for pivoting about a swivel axis that is not parallel to the blocking axis of the lens, and at least one drill tool mounted to rotate on the machining module about a first axis of rotation. The machining device includes at least one other machining tool mounted to rotate on the machining module about another axis of rotation that is distinct from the first axis of rotation and that is stationary relative to the first axis of rotation.

Description

TECHNICAL FIELD TO WHICH THE INVENTION RELATES[0001]The present invention relates in general to the field of eyeglasses, and more particularly to mounting ophthalmic lenses of a pair of correcting eyeglasses on a frame thereof.[0002]More particularly, the invention relates to a device for machining an ophthalmic lens, the device comprising means for supporting the ophthalmic lens and for driving it in rotation about a blocking axis, a machining module that can be swiveled relative to the means for supporting and driving the lens in rotation and that is suitable for pivoting about a swivel axis that is not parallel to the blocking axis of the lens, and at least one drill tool mounted to rotate on said machining module about a first axis of rotation.TECHNOLOGICAL BACKGROUND[0003]The technical portion of the profession of an optician consists in mounting a pair of ophthalmic lenses in a frame selected by a wearer. Mounting comprises three main operations:[0004]acquiring the shape of th...

Claims

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Application Information

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IPC IPC(8): B24B5/00
CPCB24B9/14B24B27/0076Y10T29/5107Y10T29/5114Y10T29/511B28D1/143
Inventor LEMAIRE, CEDRICMICHEL, TONYMAZOYER, GAELMENANT, ANDRE
Owner ESSILOR INT CIE GEN DOPTIQUE
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